-
Hi Stan,
From what I've read you want to use a very soft stone. I gather this is to allow you to sand it smooth.
Sandstone is more of a conglomerate full of hard bits like quartz, it would be worth the experiment but getting a smooth surface would be a challenge.
The purples and reds of "iron stone" sandstone would be spectacular.
Apparently you can also use soft metals, my next door neighbour is a locksmith, I might ask him for some key swarf to experiment with.
-
Rabz is probably right re sandstone, but if you crush it up you may be able to filter out the quartz.
The leftovers will be particles of clay, iron and a few other weathered stones.
No reason why you couldnt experiment with that.
-
good thoughts guys, yep quartz is very hard, i think experiment is key here
-
i have some old red house bricks that might work well... now they are soft and a quick sanding test seems to work...
